--- trunk/pygtk/canvas/blockcanvas.py	2008/11/17 10:16:30	1958
+++ trunk/pygtk/canvas/blockcanvas.py	2008/11/17 11:51:01	1959
@@ -39,4 +39,13 @@
         dirty_matrix_items.update(super(BlockCanvas, self)._normalize(items))
         return dirty_matrix_items
 
+	def reattach_ascend(self, library):
+		# FIXME still need a way of iterating through these items
+		items = []
+		for item in items:
+			if not hasattr(item, 'ports'):
+				continue
+			if item.blocktype.type is None:
+				item.blocktype.reattach_ascend(library)
+